Removed trailing white space at end of lines

man2/futex.2

@@ -712,7 +712,7 @@ argument is ignored.
 This operation is the same as
 .BR FUTEX_WAKE
 except that the
-.I val3 
+.I val3
 argument is used to provide a 32-bit bit mask to the kernel.
 This bit mask is used to select which waiters should be woken up.
 The selection is done by a bit-wise AND of the "wake" bit mask
@@ -744,7 +744,7 @@ including those that are not interested in being woken up
 .\"     in glibc. However, the pthreads library no longer uses the
 .\"     same locking algorithm, and these extensions are not used
 .\"     without the bitset parameter being all ones.
-.\" 
+.\"
 .\" The page goes on to note that the FUTEX_WAIT_BITSET operation
 .\" is nevertheless used (with a bit mask of all ones) in order to
 .\" obtain the absolute timeout functionality that is useful
@@ -1638,7 +1638,7 @@ Glibc does not provide a wrapper for this system call; call it using
 .BR syscall (2).
 
 Several higher-level programming abstractions are implemented via futexes,
-including POSIX semaphores and 
+including POSIX semaphores and
 various POSIX threads synchronization mechanisms
 (mutexes, condition variables, read-write locks, and barriers).
 .\" TODO FIXME(Torvald) Above, we cite this section and claim it contains

man2/time.2

@@ -89,9 +89,9 @@ with
 .I tloc
 specified as NULL cannot fail with the error
 .BR EOVERFLOW ,
-even on ABIs where 
+even on ABIs where
 .I time_t
-is a signed 32-bit integer and the clock ticks past the time 2**31 
+is a signed 32-bit integer and the clock ticks past the time 2**31
 (2038-01-19 03:14:08 UTC, ignoring leap seconds).
 (POSIX.1 permits, but does not require, the
 .B EOVERFLOW

man3/mq_open.3

@@ -207,7 +207,7 @@ limit.
 for details of these limits.)
 .TP
 .B EMFILE
-The per-process limit on the number of open file 
+The per-process limit on the number of open file
 and message queue descriptors has been reached
 (see the description of
 .BR RLIMIT_NOFILE